Abstract: An ultra-lite building system comprising a building constructed with base plates, wall panels composed of plastic core columns and foam surrounding the core columns, a plastic header assembly, plastic and foam joists and plastic or metal studs extending between said foam wall panels.

Abstract: A laminated composite building component, capable of sustained axial stress as a primary support structure and enclosure of a building structure, comprising a lamination of rigid and resilient material, said rigid material formed of sheets with continuous corrugations parallel to the supporting axis and which have opposite faces being bonded to and encapsulated by said resilient material, said resilient material being a cellular foam matrix, an adhesive or fusion that bonds the rigid and resilient material together in either a static or continuous laminating process, said resilient material forming two outer surfaces spaced from the rigid material, said rigid material having opposite lateral edges being exposed from said resilient material, said lateral edges of the rigid material having return flanges for interlocking said laminated composite building component with adjacent building component, and said building components capable of being supplied and distributed in generic lengths and custom field-cut like